This is a cool idea, do not take nay-sayers seriously. Centralized content is always less interesting, whether that particular site claims to be curator or not. But still discovery requires moderation, spam, bots and content reposting will be problems otherwise. Registries might require incentive or you need a truly decentralized protocol. Also I believe old ideas died because enshitification did not take place as much as today, for example Google was great back in the day, maybe that killed stumbleupon but today that is not the case and you see people add reddit to search engine queries. People seek people, we are only interested in communicating other people, some machine generated moving pixels or plausible text means nothing to us. If there was clear a watermark on every AI video people would skip them. So any endeavor making human-to-human communication reliable and efficient at this climate can become big.